Glen Ullin, North Dakota Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Glen Ullin weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Clear——94°59°—
- MondayJul 6Light Drizzle16%0.02″86°69°-8°
- TuesdayJul 7Light Drizzle65%—80°62°-6°
- WednesdayJul 8Light Drizzle53%—83°62°+3°
- ThursdayJul 9Heavy Showers26%1.7″93°62°+10°
- FridayJul 10Light Drizzle26%—92°67°-1°
- SaturdayJul 11Light Drizzle12%—102°68°+10°
AQI 37 (Good), driven by Ozone. AQI up 11 over the last 6 hours (gradual rise). Ozone at AQI 49 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 49 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 49
- UV peak
- 7.7 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 49
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 12:11 AM
- Moonset
- 12:00 PM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Glen Ullin at a glance
- Today vs. normal: 28°F above the seasonal normal for this latitude
- Last frost: May 27 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 58631
16-Day Forecast — Glen Ullin
- Sun93°59°6%
- Mon86°69°16%
- Tue80°62°65%
- Wed83°62°53%
- Thu93°62°26%
- Fri92°67°26%
- Sat102°68°12%
- Sun91°69°7%
- Mon94°64°7%
- Tue95°68°8%
- Wed99°74°19%
- Thu96°72°17%
- Fri105°70°13%
- Sat96°72°17%
- Sun92°63°13%
- Mon98°70°16%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Glen Ullin
SPC has placed Glen Ullin in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Isolated severe storms possible. Limited threat for hail or damaging wind.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
ZIP codes in Glen Ullin
- 58631